5.3 heads milled 30 thou.
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Milled 5.3s. What are my options?
My 5.3 heads are milled 30 thousandths and I would like to upgrade my cam. How big of a cam can I go? I would like something like an fm 13. I'm tired of my 224.
Last edited by n2o; 06-14-2005 at 07:26 PM.
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you will probably have to flycut the pistons with the F13 or similar cam.the 5.3s have a lower valve drop than 5.7 heads(about .030).no matter what cam you go with,check your piston to valve clearence.